Biotechnology and its ApplicationMedium
Question
The inactive form of Bt toxin is converted to the active form in the insect gut $\_\_\_\_$
Options
A.by proteases
B.by nucleases
C.due to alkaline pH
D.due to acidic pH
Solution
Sol. [Key Concept: Activation of Bt toxin in the alkaline insect gut]
Bt toxin protein exists as inactive protoxins, but once an insect ingests the inactive toxin, it is converted into an active form of toxin due to the alkaline pH of the gut which solubilises the crystals.
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